Repositorio del curso CCOM4030 el semestre B91 del proyecto Artesanías con el Instituto de Cultura

sshpk-conv.1 3.9KB

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  1. .TH sshpk\-conv 1 "Jan 2016" sshpk "sshpk Commands"
  2. .SH NAME
  3. .PP
  4. sshpk\-conv \- convert between key formats
  5. .SH SYNOPSYS
  6. .PP
  7. \fB\fCsshpk\-conv\fR \-t FORMAT [FILENAME] [OPTIONS...]
  8. .PP
  9. \fB\fCsshpk\-conv\fR \-i [FILENAME] [OPTIONS...]
  10. .SH DESCRIPTION
  11. .PP
  12. Reads in a public or private key and converts it between different formats,
  13. particularly formats used in the SSH protocol and the well\-known PEM PKCS#1/7
  14. formats.
  15. .PP
  16. In the second form, with the \fB\fC\-i\fR option given, identifies a key and prints to
  17. stderr information about its nature, size and fingerprint.
  18. .SH EXAMPLES
  19. .PP
  20. Assume the following SSH\-format public key in \fB\fCid_ecdsa.pub\fR:
  21. .PP
  22. .RS
  23. .nf
  24. ecdsa\-sha2\-nistp256 AAAAE2VjZHNhLXNoYTI...9M/4c4= user@host
  25. .fi
  26. .RE
  27. .PP
  28. Identify it with \fB\fC\-i\fR:
  29. .PP
  30. .RS
  31. .nf
  32. $ sshpk\-conv \-i id_ecdsa.pub
  33. id_ecdsa: a 256 bit ECDSA public key
  34. ECDSA curve: nistp256
  35. Comment: user@host
  36. Fingerprint:
  37. SHA256:vCNX7eUkdvqqW0m4PoxQAZRv+CM4P4fS8+CbliAvS4k
  38. 81:ad:d5:57:e5:6f:7d:a2:93:79:56:af:d7:c0:38:51
  39. .fi
  40. .RE
  41. .PP
  42. Convert it to \fB\fCpkcs8\fR format, for use with e.g. OpenSSL:
  43. .PP
  44. .RS
  45. .nf
  46. $ sshpk\-conv \-t pkcs8 id_ecdsa
  47. \-\-\-\-\-BEGIN PUBLIC KEY\-\-\-\-\-
  48. MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEAsA4R6N6AS3gzaPBeLjG2ObSgUsR
  49. zOt+kWJoijLnw3ZMYUKmAx+lD0I5XUxdrPcs1vH5f3cn9TvRvO9L0z/hzg==
  50. \-\-\-\-\-END PUBLIC KEY\-\-\-\-\-
  51. .fi
  52. .RE
  53. .PP
  54. Retrieve the public half of a private key:
  55. .PP
  56. .RS
  57. .nf
  58. $ openssl genrsa 2048 | sshpk\-conv \-t ssh \-c foo@bar
  59. ssh\-rsa AAAAB3NzaC1yc2EAAA...koK7 foo@bar
  60. .fi
  61. .RE
  62. .PP
  63. Convert a private key to PKCS#1 (OpenSSL) format from a new\-style OpenSSH key
  64. format (the \fB\fCssh\-keygen \-o\fR format):
  65. .PP
  66. .RS
  67. .nf
  68. $ ssh\-keygen \-o \-f foobar
  69. \&...
  70. $ sshpk\-conv \-p \-t pkcs1 foobar
  71. \-\-\-\-\-BEGIN RSA PRIVATE KEY\-\-\-\-\-
  72. MIIDpAIBAAKCAQEA6T/GYJndb1TRH3+NL....
  73. \-\-\-\-\-END RSA PRIVATE KEY\-\-\-\-\-
  74. .fi
  75. .RE
  76. .SH OPTIONS
  77. .TP
  78. \fB\fC\-i, \-\-identify\fR
  79. Instead of converting the key, output identifying information about it to
  80. stderr, including its type, size and fingerprints.
  81. .TP
  82. \fB\fC\-p, \-\-private\fR
  83. Treat the key as a private key instead of a public key (the default). If you
  84. supply \fB\fCsshpk\-conv\fR with a private key and do not give this option, it will
  85. extract only the public half of the key from it and work with that.
  86. .TP
  87. \fB\fC\-f PATH, \-\-file=PATH\fR
  88. Input file to take the key from instead of stdin. If a filename is supplied
  89. as a positional argument, it is equivalent to using this option.
  90. .TP
  91. \fB\fC\-o PATH, \-\-out=PATH\fR
  92. Output file name to use instead of stdout.
  93. .PP
  94. \fB\fC\-T FORMAT, \-\-informat=FORMAT\fR
  95. .TP
  96. \fB\fC\-t FORMAT, \-\-outformat=FORMAT\fR
  97. Selects the input and output formats to be used (see FORMATS, below).
  98. .TP
  99. \fB\fC\-c TEXT, \-\-comment=TEXT\fR
  100. Sets the key comment for the output file, if supported.
  101. .SH FORMATS
  102. .PP
  103. Currently supported formats:
  104. .TP
  105. \fB\fCpem, pkcs1\fR
  106. The standard PEM format used by older OpenSSH and most TLS libraries such as
  107. OpenSSL. The classic \fB\fCid_rsa\fR file is usually in this format. It is an ASN.1
  108. encoded structure, base64\-encoded and placed between PEM headers.
  109. .TP
  110. \fB\fCssh\fR
  111. The SSH public key text format (the format of an \fB\fCid_rsa.pub\fR file). A single
  112. line, containing 3 space separated parts: the key type, key body and optional
  113. key comment.
  114. .TP
  115. \fB\fCpkcs8\fR
  116. A newer PEM format, usually used only for public keys by TLS libraries such
  117. as OpenSSL. The ASN.1 structure is more generic than that of \fB\fCpkcs1\fR\&.
  118. .TP
  119. \fB\fCopenssh\fR
  120. The new \fB\fCssh\-keygen \-o\fR format from OpenSSH. This can be mistaken for a PEM
  121. encoding but is actually an OpenSSH internal format.
  122. .TP
  123. \fB\fCrfc4253\fR
  124. The internal binary format of keys when sent over the wire in the SSH
  125. protocol. This is also the format that the \fB\fCssh\-agent\fR uses in its protocol.
  126. .SH SEE ALSO
  127. .PP
  128. .BR ssh-keygen (1),
  129. .BR openssl (1)
  130. .SH BUGS
  131. .PP
  132. Encrypted (password\-protected) keys are not supported.
  133. .PP
  134. Report bugs at Github
  135. \[la]https://github.com/arekinath/node-sshpk/issues\[ra]